Identification of Ions & Gases Quiz

Beschreibung

Quiz on tests for ions and gases
Jeffrey Piggott
Quiz von Jeffrey Piggott, aktualisiert more than 1 year ago
Jeffrey Piggott
Erstellt von Jeffrey Piggott vor mehr als 4 Jahre
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Zusammenfassung der Ressource

Frage 1

Frage
The results of two tests on solid X are shown. What is X?
Antworten
  • A copper(II) chloride
  • B copper(II) iodide
  • C iron(II) chloride
  • D iron(II) iodide

Frage 2

Frage
A white solid is insoluble in water. When it is added to hydrochloric acid, bubbles of gas are formed. Adding aqueous ammonia to the solution formed gives a white precipitate. Adding excess aqueous ammonia causes the precipitate to re-dissolve. What is the white solid?
Antworten
  • A aluminium nitrate
  • B ammonium nitrate
  • C calcium carbonate
  • D zinc carbonate

Frage 3

Frage
An element, X, is a dark grey crystalline solid at room temperature. It has a melting point of 114°C and a density of 4.9 g/ cm3. When heated gently it forms a purple vapour. Where in the Periodic Table is X found?
Antworten
  • A
  • B
  • C
  • D

Frage 4

Frage
Which two compounds give a white precipitate when their aqueous solutions are mixed?
Antworten
  • A silver nitrate and sodium chloride
  • B silver nitrate and sodium iodide
  • C sodium hydroxide and copper(II) sulfate
  • D sodium hydroxide and iron(II) chloride

Frage 5

Frage
Two tests are carried out to identify an aqueous solution of X. test 1 Aqueous sodium hydroxide is added and a blue precipitate is produced. test 2 Dilute nitric acid is added followed by aqueous silver nitrate and a white precipitate is produced. What is X?
Antworten
  • A copper carbonate
  • B copper chloride
  • C iron(III) carbonate
  • D iron(III) chloride

Frage 6

Frage
Which gas relights a glowing splint?
Antworten
  • A ammonia
  • B carbon dioxide
  • C hydrogen
  • D oxygen

Frage 7

Frage
Which statement about aqueous sodium hydroxide is correct?
Antworten
  • A When it is added to a solution containing sulfate ions, a white precipitate is formed.
  • B When it is added to a solution of copper(II) ions, a blue precipitate is formed which dissolves in excess to give deep blue solution.
  • C When it is added to a solution of iron(II) ions, a green precipitate is formed which does not dissolve in excess.
  • D When it is added to ammonium chloride, a gas is produced which turns blue litmus red.

Frage 8

Frage
Aqueous sodium hydroxide is added to solid X and the mixture is heated. A green precipitate is formed and an alkaline gas is given off. Which ions are present in X?
Antworten
  • A NH4+ and Fe2+
  • B NH4+ and Fe3+
  • C OH and Fe2+
  • D OH and Fe3+

Frage 9

Frage
Compound X is tested and the results are shown in the table. Which ions are present in compound X?
Antworten
  • A ammonium ions and carbonate ions
  • B ammonium ions and chloride ions
  • C calcium ions and carbonate ions
  • D calcium ions and chloride ions

Frage 10

Frage
The cations shown are identified by the colour of the precipitates formed when an excess of an aqueous solution of X is added. What is X?
Antworten
  • A ammonia
  • B limewater
  • C silver nitrate
  • D sodium hydroxide

Frage 11

Frage
Which of these pairs of aqueous ions both react with dilute sulfuric acid to give a visible result?
Antworten
  • A
  • B
  • C
  • D

Frage 12

Frage
Element X forms an acidic, covalent oxide. Which row shows how many electrons there could be in the outer shell of an atom of X?
Antworten
  • A
  • B
  • C
  • D

Frage 13

Frage
Barium hydroxide is an alkali. It reacts with hydrochloric acid. How does the pH of the hydrochloric acid change as an excess of aqueous barium hydroxide is added?
Antworten
  • A The pH decreases from 14 and becomes constant at 7.
  • B The pH decreases from 14 to about 1.
  • C The pH increases from 1 and becomes constant at 7.
  • D The pH increases from 1 to about 14.

Frage 14

Frage
The results of three tests on a solution of compound X are shown. What is compound X?
Antworten
  • A aluminium carbonate
  • B aluminium chloride
  • C zinc carbonate
  • D zinc chloride

Frage 15

Frage
A solution contains barium ions and silver ions. What could the anion be?
Antworten
  • A chloride only
  • B nitrate only
  • C sulfate only
  • D chloride or nitrate or sulfate

Frage 16

Frage
Some reactions involving sodium are shown. Which reaction does not involve the formation of a base?
Antworten
  • A
  • B
  • C
  • D.

Frage 17

Frage
When sodium reacts with water, a solution and a gas are produced. The solution is tested with litmus paper and the gas is tested with a splint. What happens to the litmus paper and to the splint?
Antworten
  • A Litmus paper goes from blue to red; a glowing splint relights.
  • B Litmus paper goes from blue to red; a lighted splint "pops".
  • C Litmus paper goes from red to blue; a glowing splint relights.
  • D Litmus paper goes from red to blue; a lighted splint "pops".

Frage 18

Frage
Aqueous sodium hydroxide is added to a solution of a salt. A blue precipitate is formed which does not dissolve in excess. Aluminium foil is added to the mixture and the mixture is warmed. A gas is produced that turns damp red litmus paper blue. What is the name of the salt?
Antworten
  • A ammonium nitrate
  • B ammonium sulfate
  • C copper(II) nitrate
  • D copper(II) sulfate

Frage 19

Frage
An element E is burned in air. A white solid oxide is formed. The oxide is tested with damp red litmus paper. The paper turns blue. What is element E?
Antworten
  • A calcium
  • B carbon
  • C iodine
  • D sulfur
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